Content-Type: text/html; charset=UTF-8 Double Star Calculator - Orbital Elements

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 18:18:59

Orbital Elements for BU932AB
WDS: BU932AB WDS ID/Discoverer
P: 177.700 Orbital period (years)
a: 0.531 Semi-major axis (arcseconds)
i: 70.4 Inclination (degrees)
Ω: 117.7 Longitude of ascending node (degrees)
T: 1921.870 Epoch of periastron passage (year)
e: 0.925 Eccentricity
ω: 103.6 Longitude of periastron (degrees)
Start-Year: 1937.0 Year
End-Year: 2113.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for BU932AB
Position: 133440.48-131251.5 Epoch-2000 right ascension and declination
WDS-ID: 13347-1313 WDS designation
Discoverer Code: BU932AB Discover designation and components
ADS number: 8954 Aitken Double Star catalog
HD number: 118054 HD catalog number
Hipparcos number: 66247 Hipparcos catalog number
V1: 6.30 Magnitude of the primary
V2: 7.29 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2009 Date of last observation
Orbit grade: 3 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for BU932AB



WDS 6th Orbit including measures of BU932AB

Image from the USNO WDS 6th Orbit Catalog (see Acknowledgements)


Ephemeris of BU932AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.432     69.3
-------------------------
1937.0     0.182    356.6
1938.0     0.186    358.8
1939.0     0.189      0.8
1940.0     0.193      2.8
1941.0     0.197      4.8
1942.0     0.201      6.6
1943.0     0.204      8.4
1944.0     0.208     10.1
1945.0     0.212     11.7
1946.0     0.215     13.3
1947.0     0.219     14.9
1948.0     0.223     16.4
1949.0     0.226     17.8
1950.0     0.230     19.2
1951.0     0.234     20.6
1952.0     0.237     21.9
1953.0     0.241     23.2
1954.0     0.245     24.4
1955.0     0.248     25.6
1956.0     0.252     26.8
1957.0     0.255     27.9
1958.0     0.259     29.0
1959.0     0.263     30.1
1960.0     0.266     31.1
1961.0     0.270     32.1
1962.0     0.273     33.1
1963.0     0.277     34.1
1964.0     0.280     35.0
1965.0     0.284     35.9
1966.0     0.287     36.8
1967.0     0.291     37.7
1968.0     0.294     38.5
1969.0     0.298     39.4
1970.0     0.301     40.2
1971.0     0.304     41.0
1972.0     0.308     41.8
1973.0     0.311     42.5
1974.0     0.314     43.3
1975.0     0.317     44.0
1976.0     0.321     44.7
1977.0     0.324     45.4
1978.0     0.327     46.1
1979.0     0.330     46.8
1980.0     0.333     47.4
1981.0     0.336     48.1
1982.0     0.339     48.7
1983.0     0.342     49.4
1984.0     0.345     50.0
1985.0     0.348     50.6
1986.0     0.351     51.2
1987.0     0.354     51.8
1988.0     0.357     52.3
1989.0     0.360     52.9
1990.0     0.363     53.5
1991.0     0.365     54.0
1992.0     0.368     54.5
1993.0     0.371     55.1
1994.0     0.373     55.6
1995.0     0.376     56.1
1996.0     0.378     56.6
1997.0     0.381     57.1
1998.0     0.383     57.6
1999.0     0.386     58.1
2000.0     0.388     58.6
2001.0     0.391     59.1
2002.0     0.393     59.6
2003.0     0.395     60.0
2004.0     0.397     60.5
2005.0     0.399     61.0
2006.0     0.402     61.4
2007.0     0.404     61.9
2008.0     0.406     62.3
2009.0     0.408     62.8
2010.0     0.410     63.2
2011.0     0.411     63.6
2012.0     0.413     64.0
2013.0     0.415     64.5
2014.0     0.417     64.9
2015.0     0.418     65.3
2016.0     0.420     65.7
2017.0     0.422     66.1
2018.0     0.423     66.5
2019.0     0.425     66.9
2020.0     0.426     67.4
2021.0     0.427     67.8
2022.0     0.429     68.1
2023.0     0.430     68.5
2024.0     0.431     68.9
2025.0     0.432     69.3
2026.0     0.433     69.7
2027.0     0.434     70.1
2028.0     0.435     70.5
2029.0     0.436     70.9
2030.0     0.437     71.3
2031.0     0.438     71.6
2032.0     0.438     72.0
2033.0     0.439     72.4
2034.0     0.440     72.8
2035.0     0.440     73.1
2036.0     0.441     73.5
2037.0     0.441     73.9
2038.0     0.441     74.3
2039.0     0.441     74.6
2040.0     0.442     75.0
2041.0     0.442     75.4
2042.0     0.442     75.8
2043.0     0.441     76.1
2044.0     0.441     76.5
2045.0     0.441     76.9
2046.0     0.441     77.3
2047.0     0.440     77.6
2048.0     0.440     78.0
2049.0     0.439     78.4
2050.0     0.438     78.8
2051.0     0.437     79.1
2052.0     0.436     79.5
2053.0     0.435     79.9
2054.0     0.434     80.3
2055.0     0.433     80.7
2056.0     0.432     81.1
2057.0     0.430     81.5
2058.0     0.428     81.9
2059.0     0.427     82.3
2060.0     0.425     82.7
2061.0     0.423     83.1
2062.0     0.421     83.5
2063.0     0.419     83.9
2064.0     0.416     84.3
2065.0     0.414     84.7
2066.0     0.411     85.2
2067.0     0.408     85.6
2068.0     0.405     86.0
2069.0     0.402     86.5
2070.0     0.398     86.9
2071.0     0.395     87.4
2072.0     0.391     87.9
2073.0     0.387     88.4
2074.0     0.383     88.8
2075.0     0.378     89.3
2076.0     0.373     89.9
2077.0     0.368     90.4
2078.0     0.363     90.9
2079.0     0.358     91.5
2080.0     0.352     92.1
2081.0     0.345     92.7
2082.0     0.339     93.3
2083.0     0.332     93.9
2084.0     0.324     94.6
2085.0     0.316     95.3
2086.0     0.308     96.1
2087.0     0.298     96.9
2088.0     0.289     97.7
2089.0     0.278     98.6
2090.0     0.266     99.6
2091.0     0.254    100.7
2092.0     0.240    101.9
2093.0     0.225    103.2
2094.0     0.207    104.8
2095.0     0.188    106.7
2096.0     0.164    109.0
2097.0     0.136    112.2
2098.0     0.099    117.6
2099.0     0.043    133.8
2100.0     0.045    288.8
2101.0     0.085    306.3
2102.0     0.106    314.2
2103.0     0.119    320.0
2104.0     0.128    324.7
2105.0     0.136    328.9
2106.0     0.143    332.6
2107.0     0.148    336.1
2108.0     0.154    339.3
2109.0     0.158    342.3
2110.0     0.163    345.1
2111.0     0.167    347.8
2112.0     0.171    350.3






Disclaimer
This result is provided without warranty. For all terms, see the Full Disclaimer. Copyright (C) 2025. The Double Star Calculator and the results generated are licensed under CC BY-NC-SA 4.0.


Acknowledgements
The Double Star Calculator - Orbital Elements makes use of the Washington Double Star Sixth Catalog of Orbits of Visual Binary Stars, maintained at the U.S. Naval Observatory.


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